1. Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
2. Drug Discovery and Development Centre (H3D), Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa
3. Medicines Discovery Institute, Cardiff University, Cardiff CF10 3AT, United Kingdom
4. South African Medical Research Council Drug Discovery and Development Research Unit, Department of Chemistry and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch 7701, South Africa
5. Medicine (Hematology/Oncology), Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
6. VA Tennessee Valley Healthcare System, Nashville, Tennessee 37212, United States